Medina County
400 Mbps Air Fiber. No contracts. No data caps. Local support you can actually reach.
Tucked near the old railroad and known locally as a quiet gem of Medina County, La Coste is a small incorporated city off Highway 90 where Medina Valley ISD families and small businesses make up a tight-knit community.
Satellite internet at $120/month has been the default for many families here. STI does it better — Air Fiber delivers 400 Mbps to La Coste for $65/month. No dish. No contract. Taxes included.
Zip codes served: 78039
La Coste is a small incorporated city off US-90 in Medina County, about 20 miles east of Hondo. AT&T offers DSL on copper lines in La Coste, but fiber has not been extended to 78039, and speeds on older infrastructure in communities this size are typically limited. Spectrum does not serve La Coste. For households wanting fast internet, Starlink has been the most common choice.
La Coste sits in the stretch of US-90 that runs through the heart of Medina County — railroad-adjacent, agricultural in character, and home to families that have been here for generations alongside newer residents moving out from San Antonio. Medina Valley ISD serves students here, and the school district's online requirements have pushed more families to look for broadband that handles homework, testing platforms, and video calls reliably.
STI's fixed wireless network reaches La Coste through our Medina County tower infrastructure. Most addresses in 78039 are within coverage, and with our operations based in Hondo, installs and support are local. No driving to San Antonio for a technician visit — the team is right here in the county.
Properties on the outskirts of La Coste or on county roads beyond the main community should call to confirm coverage before scheduling. Line-of-sight from our nearest tower is what determines whether we can reach your specific address, and we'll verify it before you commit to anything.
La Coste sits on US 90 roughly 20 miles from both Hondo and downtown San Antonio, which makes it one of the more centrally located towns in STI's coverage area. It was founded in 1881 along the Galveston, Harrisburg and San Antonio Railway, and by 1936 about half its residents traced their ancestry to Henri Castro's original Alsatian colonists. Our Lady of Grace Catholic Church, built in 1912 with Gothic arches and stained glass, still anchors the town.
La Coste's farmland — cotton, oats, hay, and vegetables — was historically irrigated through the Medina Lake canal system, and Medina Valley ISD's district office sits just a few miles away. Its position on US 90 has made it increasingly popular with San Antonio commuters looking for small-town living without giving up the drive. That growth has outpaced the DSL and cable infrastructure built decades ago, which is where STI comes in.
When something goes wrong, you call (830) 429-4149 — and you talk to someone who lives and works in South Texas. Not a ticket system. Not an overseas call center. And new customers are installed within one business day.
Broadband Facts
South Texas Internet
Velocity 400
Fixed Wireless Broadband
This Monthly Price is not an introductory rate.
This Monthly Price does not require a contract.
Additional Charges & Terms
Discounts & Bundles
Call (830) 429-4149 to ask about available discounts.
Speeds Provided with Plan
Data Included with Monthly Price
Customer Support: (830) 429-4149
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